Answer:
Electron micrographs following freeze-fracture of the plasma membrane indicate that: the membrane is a phospholipid bilayer.
Justin is walking around an area that has few trees and many tall grasses,
In which blome is Justin most likely walking?
deciduous forest
grassland
desert
tropical rain forest
Answer:
grassland
Explanation:
decidouos forest and rainforest have lots of trees and little/no tall grass
desert has little/no tree and grass
What are the products of cellular respiration?
Answer:
The products of cellular resperation are 6 carbon dioxide, 6 water, and 38 ATP.
Explanation:
CO2 is made during the kreb cycle.
H2O is made at the end of the electron transport chain.
2 ATP made by glycolysis,2 by the kreb cycle, and 34 by the electron transport chain.
Which statement describes one event that happens at deep-ocean trenches? Crust is formed. Mountains are formed. Seafloor spreading occurs. Denser plates slide under lighter plates.
Answer:
D
Explanation:
I took the test...Good luck!
Answer: d. Denser plates slide under lighter plates
How do birds and dogs both use DNA as instructions for building their bodies
even though they are very different organisms?
O A. Their DNA has the same nucleotide bases, but in different
patterns.
B. Their DNA has different types of nucleotide bases.
C. Their DNA has different lengths.
D. Their DNA is made of different types of molecules.
Answer:
DNA is language of life, which uses only four letters (=nitrogenous bases). In this language only three-letter words are allowed (=codons)
Population of Rabbits based on Leg Length
Generation
Number with short Number with medium
Number with long
lege
135
155
1
2
3
97
23
22
95
150
5
18
15
13
175
180
97
A student is comparing the leg lengths of the rabbits in a population. She wonders if natural setection is occurring. She asks you to
evaluate her conclusions. Select ALL that are NOT supported by her data.
A)
The rabbits with medium length legs are the most stable and thus will out
survive the others.
B)
Medium length legs appears to be neither an advantage or disadvantage in
the current environment.
The rabbits with longer legs have a selective advantage that allows them
to survive and reproduce.
It is unlikely that evolution is occurring because none of the traits have
disappeared from the population
A predator is the likely source of natural selection in this population as the
rabbits with longer legs are more likely to escape compared with those
with the shorter legs
D)
E)
Answer:A and D
Explanation:
It’s the USA test prep question
The following data indicate that the statement "the medium rabbit leg is stable and evolution is unlikely to happen" is false. Hence, options A and D are the correct options for the statements.
What is the role of natural selection?Natural selection selects organisms that are best suited to their environment, and these individuals multiply to increase their population size. In this case, generation after generation, the population of short-legged rabbits decreased from 23 to 13. This indicates that the small-legged rabbits were eaten by the predators, resulting in a reduction in their number. The number of middle-legged rabbits did not vary much, so they did not gain a selective advantage, but long-legged rabbits easily escaped from predators, and as a result, they rapidly increased in number, and as a result, the small-legged population declined with the increase in long-legged rabbits.
Hence, the medium leg is stable and evolution is unlikely" is false. Hence, options A and D are the correct options for the statements.
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The question is incomplete, the complete question is the below,
Number with short legs (Generation 1 to 6) =23, 22, 20, 18, 15, 13
Number with medium legs (Generation 1 to 6) =97, 98, 95, 97, 96, 97
Number with long legs (Generation 1 to 6) =135, 155, 160, 163, 175, 180
A)The rabbits with medium length legs are the most stable and thus will out survive the others.
B) Medium length legs appears to be neither an advantage or disadvantage in the current environment.
C) The rabbits with longer legs have a selective advantage that allows them to survive and reproduce.
D) It is unlikely that evolution is occurring because none of the traits have
disappeared from the population.
E) A predator is the likely source of natural selection in this population as the rabbits with longer legs are more likely to escape compared with those with the shorter legs.
Warrior ants have a chemical signal that tell other ants in the family not to attack. Through
natural selection these ants have_______
What is one difference between you and a protist?
A) Your cells have a nucleus; those of protists do not.
B) During your life, you grow considerably in size; a protist doesn't.
C) All your cells can carry out all life functions on their own; those of protists cannot.
D.) Your cells are capable of division, those of a protist are not.
Answer:
A) Your cells have a nucleus; those of protists do not.
Explanation:
Your cells are eukaryotes (which DO have nuclei) and protists don't.
Which outcome is a benefit of physical activity?
management of weight
increased risk of stress
increased risk of heart attack
poor self-esteem, affecting mental health
Answer:
management of weight
Explanation:
Answer: A management of weight
Explanation:
Pls answer yall thanks
Answer:
dkdkdjdjmdm111bsdkdkdjjdjsjs
A ligamentous connection, such as that between the bones of the lower leg, is called a ____________.
a. synchondrosis
b. gomphosis
c. syndesmosis
d. synostosis
e. symphysis
Answer:
A ligamentous connection such as between the bones of the lower leg is called a syndesmosis.
C.
What is the IV ? Independent Variable
Answer:
The variable that does not rely on another variable. IVs can include time, weather, etc.
Explanation:
Carbohydrates are found in many foods. What is the end result of the body's use of a
carbohydrate?
А
A carbohydrate is used as it is to build up the body.
B
A carbohydrate is broken into glucose, which makes the body move.
C Carbohydrates are combined to make a large carbohydrate.
D
A carbohydrate is broken into glucose, which is broken into smaller molecules to
release energy
Answer:
D . A carbohydrate is broken into glucose, which is broken into smaller molecules to
release energy
Explanation:
Carbohydrates found in many foods provides energy for the body. It is made up of carbon, hydrogen and oxygen.
Carbohydrates is found in many food substances like cereals. When carbohydrates giant molecules are taken into the body. Metabolic processes reduces them to glucose which is digestible. When glucose is broken down energy is released for work and it is stored in form of ATP in the body.Proteins are used to build the body
Answer:
The answer is D
Explanation:
Why is the transfer of energy essential to living organisms?
Answer:
All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is the set of life-sustaining chemical processes that enables organisms transform the chemical energy stored in molecules into energy that can be used for cellular processes.
Explanation:
Hope it helps :)
Have a good day/night
Brainliest pls
Why do plants supplies bacteria with amino acids ?
Answer: All living cells need nitrogen to make nucleic acids, proteins, and other cellular constituents. Plants absorb nitrogen and put them into amino acids and proteins. Other organisms consume the plants. As part of the major nutrients in the diet, amino acids should be particularly taken into account since they not only support the growth and survival of bacteria in the GI tract [27], but also regulate energy and protein homeostasis in organisms [28,29].
Hope this helps... stay safe and have a great weekend!!! plz mark me brainliest if i am right!!!! :D
what is the meaning of epiko
Answer:
search it up online i think
Explanation:
How do plants use chlorophyll in photo
Answer:
Chlorophyll, which resides in the chloroplasts of plants, is the green pigment that is necessary in order for plants to convert carbon dioxide and water, using sunlight, into oxygen and glucose. During photosynthesis, chlorophyll captures the sun's rays and creates sugary carbohydrates or energy, which allows the plant to grow.
Explanation:
What is worm "poop" called?
Answer:
Vermicast.
Explanation:
Vermicast are worm castings, worm manure, or worm faeces.
Answer:
Vermicast.
Explanation:
lol I copied his answer to get points LOL
Organisms may contain up to five levels of organization within their bodies. Which level of organization is best represented by the liver?
tissue
organ
organism
organ system
Answer: The liver best represents an organ.
Explanation:
Liver is the largest organ in the human body. It does multiple functions in the physiological system. The correct option is organ.
What are the levels of organization?1. Cell - Cell is the fundamental unit of life. It is the smallest level of organization.
2. Tissue - tissue is a group of cells that are structurally and functionally similar, for eg. muscle tissue, connective tissue.
3. Organ - an organ is a group of tissues that function in a combined manner, for eg. liver, stomach.
4. Organ system - an organ system is a group of organs that function for a specific physiological purpose, for eg. nervous system, digestive system.
5. Organism - an organism is a whole individual which is made up of the various tissues and organ systems, for eg. human being, animals, plants.
A diagram is attached that illustrates these above mentioned levels of organization
Liver is made up of different types of tissues such as the hepatic laminae, bile canaliculi, hepatic sinusoids, hepatic and portal lobule and the hepatic acinus.
Thus, the correct option is organ.
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Name disease Resistant cattle
breeds
Answer:
you should try asking brain- ly
Answer:
A region on chromosome 1 was associated with infectious keratoconjunctivitis (pinkeye) in cattle, which is heritable. Bos indicus breeds were observed to have better resistance to tick infestation and tick-borne diseases, as revealed through higher hemolytic complement activity
Explain how osmosis causes a red blood cell to become hypertonic, become hypotonic, or remain isotonic with the blood.
Colorblindness results from
Answer:
It is a genetic condition caused by a difference in how one or more of the light-sensitive cells found in the retina of the eye respond to certain colors. These cells, called cones, sense wavelengths of light, and enable the retina to distinguish between colors.
Explanation:
Answer: Mutations in the OPN1LW, OPN1MW, and OPN1SW genes. The proteins produced from these genes play essential roles in color vision. They are found in the retina, which is the light-sensitive tissue at the back of the eye.
Describe one example of how a cell's interior is dynamic. I will give brainiest to whoever answers correctly. Please Please Please help.
Answer:
i can obsure things
Explanation:
Please answer ;-;
Which two factors are needed to calculate the velocity of an object?
A. Speed
B. Mass
C. Direction
D. Acceleration
Answer:
Required Answer:-To find velocity of a object we need 3 factorsMagnitude speedDistanceHence Here both option A and C are correctAnswer: A and C
Explanation:
got them right on my test
3. Which landforms are found on the Moon? (Select all that apply.)
craters
lakes
mountains
plateaus
•Science•
Answer:
Highlands Rilles Trenches divots
Explanation:
The landforms found on the Moon are craters, mountains, and plateaus. Options A, C, and D are correct.
The moon’s three major landforms are the craters, the highlands, and the maria, but there are many other prominent features on the moon’s surface.
Some impact craters, for example, have bright rays radiating outward from the center of the crater. The moon also has several rilles. Rilles are long, narrow tunnels or trenches.
There is no tectonic plate on the moon. There is no volcanic activity on the moon. Almost all of the mountains on the moon are created by asteroids impacting the past.
At the beginning of the moon’s history, there were many large asteroids in the Solar System.
Therefore options A, C, and D are correct.
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Which two human activities are believed to be the greatest contributors to global warming?
nonnative species introduction and the burning of fossil fuels
deforestation and the burning of fossil fuels
deforestation and nonnative species introduction
non-sustainable harvesting and nonnative species introductio
Answer:
B
Explanation:
well deforestation is ruining are forests and burning fossil fuels is pollution
Using antennae the male moth finds female moths by following a trail of airborne chemicals called pheromones upwind to the female producing them. This is an example of how living things A acquire nutrients B maintain homeostasis C respond to stimulus E. Grow
Answer:
C respond to stimulus ......
Using antennae the male moth finds female moths by following a trail of airborne chemicals called pheromones upwind to the female producing them.
This is an example of how living things how respond to stimulus. Thus option C is correct.
What is pheromone ?pheromone refers to the chemical agents produced by organisms which gives stimulation to other members of the same species.
It is a type of ectohormone secreted outside the body trigger stimulation to other individuals.
Organisms possess chemoreceptor which is other wise called as pheromone receptors detect the presence of the pheromones of other members of the same species.
It can stimulate a number of behavioral responses includes promote their aggregation, give signals for the presence of a predator etc.
It help in Creation of food trails, alert other species about danger, mark territory, identification between mother and offspring.
One of the best studied species is wild Silk moths where the Female moths produce bombykol type of chemical which can be detected by pheromone receptors male moths.
Thus option C is correct.
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DNA Fill the blanks
- A _____________ is a change in DNA that may result in a malformed protein
-A ____________ mutation occurs when a nitrogen base in DNA changes,but the associated amino acid remains the same
- In a ____________ mutation a DNA base is changed which results in a different amino acid
- A ________ mutation results when an amino acid is inserted or deleted causing the entire sequence that follows to be different.
Answer:
A mutation is a change in DNA that may result in a malformed protein A silent mutation occurs when a nitrogen base in DNA changes, but the associated amino acid remains the same In a missense mutation a DNA base is changed which results in a different amino acid A frameshift mutation results when an amino acid is inserted or deleted causing the entire sequence that follows to be different.Explanation:
DNA, a nucleic acid used to store genetic information, is made up of nucleotides or bases. These pair up as base pairs to make the DNA double helix. During the cell division process, random changes inside the genome can occur.
These mutations cause errors in DNA produced within the cell; and they may involve small single nucleotide polymorphisms where single nucleotides are changed and large-scale additions or deletions involving several genes.
The functions of what cell structure are described in this list? A.) the plasma membrane B.) a lysosome C.) a mitochondrion D.) the endoplasmic reticulum
Answer:
plasma membrane
Suppose a drought kills only the smallest individuals in an initially diverse population of wolves. What type of selection is this?
Using the diagram above, in what direction will water flow?
into the cell
out of the cell
into and out of the cell at equal rates
Answer:
According to the diagram, where there is the highest concentration of solutes in the cytoplasm, the water will flow into the cell.
Explanation:
Taking into account a difference in solutes concentration between the extracellular and intracellular spaces, the movement of water will be from the space with the lowest concentration of solutes to the space with the highest concentration of solutes, which explains the osmosis.
In the diagram, as there is a higher concentration of solutes in the intracellular space —cytoplasm— the water will pass from the outside to the inside of the cell, due to the force generated by a concentration gradient. The movement of water will be maintained until equilibrium of solute concentrations is reached.